Display device and electronic device including the same

Abstract

A display device includes a display panel having signal lines connected to one or more pixels, a plurality of connection pads provided to supply driving signals to the signal lines, one or more non-connection pads positioned to be adjacent to the plurality of connection pads and not connected to the signal lines, and a main controller for setting an individual voltage based on voltages of the driving signals and for applying a set individual voltage to the non-connection pad.

What is claimed is: 
     
         1 . A display device comprising:
 a display panel including signal lines connected to one or more pixels;   a plurality of connection pads for supplying driving signals to the signal lines;   one or more non-connection pads positioned adjacent to the plurality of connection pads, wherein the one or more non-connection pads are not connected to the signal lines; and   a main controller for setting an individual voltage based on voltages of the driving signals and for applying a set of individual voltages to the non-connection pad.   
     
     
         2 . The display device of  claim 1 , further comprising:
 one or more switches disposed between any one of the connection pads and the non-connection pad.   
     
     
         3 . The display device of  claim 2 , wherein the main controller turns off the one or more switches. 
     
     
         4 . The display device of  claim 3 , wherein a magnitude of the individual voltage is the same as a magnitude of the voltages of the driving signals. 
     
     
         5 . The display device of  claim 3 , wherein the individual voltage is a ground voltage. 
     
     
         6 . The display device of  claim 1 , wherein the connection pads include a (1_1)th pad and a (1_2)th pad sequentially arranged in a first direction, and
 wherein the non-connection pad includes a (2_2)th pad arranged to be spaced apart from the (1_2)th pad in a second direction, wherein the second direction intersects the first direction.   
     
     
         7 . The display device of  claim 6 , wherein the connection pads further include a (2_1)th pad, wherein the (2_1)th pad is spaced apart from the (1_1)th pad in the second direction and spaced apart from the (2_2)th pad in a direction opposite to the first direction. 
     
     
         8 . The display device of  claim 7 , further comprising:
 a (1_2)th switch disposed between the (2_1)th pad and the (2_2)th pad,   wherein the main controller turns off the (1_2)th switch.   
     
     
         9 . The display device of  claim 8 , wherein the connection pads further include:
 a (3_1)th pad arranged to be spaced apart from the (2_1)th pad in the second direction; and   a (3_2)th pad arranged to be spaced apart from the (2_2)th pad in the second direction.   
     
     
         10 . The display device of  claim 9 , wherein the main controller sets a magnitude of an individual voltage being applied to the (2_2)th pad based on a magnitude of a first voltage applied to the (1_2)th pad and a magnitude of a second voltage applied to the (3_2)th pad according to the driving signals. 
     
     
         11 . The display device of  claim 10 , wherein the magnitude of the individual voltage applied to the (2_2)th pad is an average value of the magnitude of the first voltage and the magnitude of the second voltage. 
     
     
         12 . The display device of  claim 9 , wherein the connection pads include a (2_1)th sub-pad arranged between the (2_1)th pad and the (3_1)th pad in the first direction, and
 wherein the non-connection pads include a (2_2)th sub-pad arranged between the (2_2)th pad and the (3_2)th pad in the first direction.   
     
     
         13 . The display device of  claim 12 , wherein the main controller sets the magnitude of the individual voltage being applied to the (2_2)th pad and the (2_2)th sub-pad based on a magnitude of the first voltage applied to the (1_2)th pad and the magnitude of the second voltage applied to the (3_2)th pad according to the driving signals. 
     
     
         14 . The display device of  claim 9 , wherein the connection pads further include a (3_3)th pad arranged to be spaced apart from the (3_2)th pad in the first direction, and
 wherein the non-connection pads further include a (1_3)th pad arranged to be spaced apart from the (1_2)th pad in the first direction, and a (2_3)th pad arranged to be spaced apart from the (2_2)th pad in the first direction.   
     
     
         15 . The display device of  claim 1 , further comprising:
 a scan driver generating a scan signal that is one of the drive signals,   wherein the scan driver supplies the scan signal to the one or more pixels through the signal lines.   
     
     
         16 . A display device comprising:
 a display panel including signal lines connected to one or more pixels;   a plurality of connection pads for supplying driving signals having driving signal voltages to the signal lines;   a non-connection pad positioned adjacent to the plurality of connection pads, wherein the non-connection pad is not connected to the signal lines; and   a main controller applying an individual voltage having a value which is between a highest value and a lowest value among driving signal voltages being supplied to the non-connection pad.   
     
     
         17 . An electronic device comprising:
 a processor providing input image data to a display device, wherein   the display device displays an image based on the input image data, and   wherein the display device includes:
 a display panel having signal lines connected to one or more pixels; 
 a plurality of connection pads provided to supply driving signals to the signal lines; 
 one or more non-connection pads positioned adjacent to the plurality of connection pads, wherein the plurality of connection pads are not connected to the signal lines; and 
 a main controller for setting an individual voltage based on voltages of the driving signals and for applying a set of individual voltages to the non-connection pad. 
   
     
     
         18 . The electronic device of  claim 17 , further comprising:
 one or more switches disposed between any one of the connection pads and the non-connection pad.   
     
     
         19 . The electronic device of  claim 18 , wherein the main controller turns off the one or more switches. 
     
     
         20 . The electronic device of  claim 19 , wherein a magnitude of the individual voltage is the same as a magnitude of the voltages of the driving signals.